Home / 3,072.20-4,605.60-1,838.30

Finding the Fourth Proportional to 3,072.20, 4,605.60 and 1,838.30

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Solution

The fourth proportional to 3,072.20, 4,605.60 and 1,838.30 is: 2,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.20 : 4,605.60 = 1,838.30 : x
  2. Step 2: Convert to fraction form
    3,072.20/4,605.60 = 1,838.30/x
  3. Step 3: Cross multiply
    3,072.20x = 4,605.60 × 1,838.30
  4. Step 4: Simplify right side
    3,072.20x = 8,466,474.48
  5. Step 5: Solve for x
    x = 8,466,474.48/3,072.20
  6. Step 6: Final answer
    x = 2,755.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.